China Industrial Flow Meter manufacturer
Melan Measurement & Control Instruments (Shanghai) Co.,Ltd.
MELAN MEASUREMENT & CONTROL INSTRUMENTS (SHANGHAI) CO., LTD.
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Divided Type Carbon Steel Electromagnetic Flow Meter DN15

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Melan Measurement & Control Instruments (Shanghai) Co.,Ltd.

City: shanghai

Province/State:shanghai

Country/Region:china

Tel:0086-21-57652429

Contact Person:
Ms.Nancy Zhao
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Divided Type Carbon Steel Electromagnetic Flow Meter DN15

Brand Name MELAN
Model Number MLF
Place of Origin China
Minimum Order Quantity 1pc
Price Negotiation
Payment Terms T/T
Supply Ability 500pcs per month
Delivery Time 7-10 working days
Packaging Details In Carton or Wooden Box
Product Name Electromagnetic Flow Meter
Pipeline Diameter DN15-DN2000
Accuracy Up to 0.2%
Flange GB/ANSI/JIS/BS/Others
Velocity 0.3~10m/s
Liner Material Rubber/PTFE/PU/Hard Rubber/PFA/FEP(F46)
Detailed Product Description

                                                       Electromagnetic Flow Meter Divided Type with Carbon Steel

 

1. Introduction

The MLF electromagnetic flow meter is based on Faraday's law of electromagnetic induction and consists of sensors and converters. Used to measure the conductivity of a liquid or solid. In general, its conductivity should be greater than 5μs/cm (tap water, raw water conductivity of about 100 to 500μs/cm), can also be used to measure acids, alkali, brine, pulp or pulp and other media. However, these media must not contain large amounts of magnetic substances and bubbles.

 

MLF electromagnetic flow meter is an instrument for measuring liquid flow. Widely used in metallurgy, chemical, paper, environmental protection, petroleum, textiles, food, urban management, water plants and other industries flow metering.

 

2.Working Principle

The principle of the sensor is based on Faraday’s law of electromagnetic induction.

It is installed a pair of detection electrodes on the pipe wall,where the measurement pipe axis and magnetic field lines are vertical. When the conductive liquid cuts magnetic field lines and produces induced electromagnetic force.Which can be measured by the two electrodes on the meter pipe.The result can be calculated by formula: Induced electromotive force,(flow signal) E=KBDV

E——Induced electromotive force,V;

K——meter constant;

B——Magnetic flux density,T;

D——Internal diameter of measuring pipe,m;

V——Average velocity of pipe section,m/s.

MLF Series Electromagnetic Flow Meter

Assume the volume of liquid as qv(m3/s),qv=πD2V/4),so in the formula E=(4kB/πD)qv=kqv,

K is meter constant,K=4kB/πD.

Actually, the electromagnetic flow meter consists of two parts, transmitter and sensor, the measuring electrodes inspect the electromotive force, and transmit to the converter, the converter provides excitation current.

E is usually called a flow signal, after processing the flow signal by converter, output 4~20 mA/pulse(or frequency) signal which is proportional to the flow rate, then the flow rate recording,adjusting can be achieved.

 

3. Selection of Liner Material

Liner MaterialMain PerformanceApplication
PTFE

1 The most stable chemical properties in plastics, resistant to boiling hydrogen chloride and sulfuric acid, nitric acid, aqua regia, strong bases and various organic solvents, but not resistant to the corrosion of chlorine trifluoride, high temperature nitrogen trifluoride, liquid fluorine, liquid oxygen and ozone.

2 Low wear resistance.

3 Low negative pressure resistance.

1. -25~140℃

2. Strong corrosion medium, like strong acid and alkali

3. Healthcare medium

CROil proof, solvent resistance, oxidatite resistance and the resistance to the erosion of common medium like acid, alkali, salt, etc.

1. <80℃

2. Be able to measure sewage and mud

PU

1. Very good abrasive resistance, flexibility.

2. Low acid and alkali resistance.

1. <65℃

2. Neutral strong abrasion resistance medium

Hard Rubber

1 Room temperature resistance, hydrochloric acid, acetic acid, oxalic acid, ammonia, phosphoric acid and 50% sulfuric acid, sodium hydroxide, potassium hydroxide

2 Avoid strong oxidants

1. <80℃

2. General acid, alkali, salt solution

PFA

1. Can be used for most corrosive medium like acides, alkalis, and strong oxidant.

2. High material strength, resistance to aging, better than PTFE, EFP in high temperature 

3. Injection molding for higher negative pressure

1. 40~180℃

2. Strong corrosion medium, like strong acid and alkali

3. Healthcare mdium

FEP(F46)

1. Hydrophobicity and non-viscous

2. Corrosion resistance is inferior to PFA

3. Negative pressure

1. 40~180℃

2. Strong corrosion medium, like strong acid and alkali

3. Healthcare mdium

 

 

4. Dimensional Sketches

a. Dimension of Converter

                                                                      Divided Type

 

 

                                                                      Integrated Type

 

                                                                  Battery Powered Type

 

 

b. Dimension of Sensor

 

 

Pipeline DiameterDimension
LWH
1516095130
20160105137
25160115150
32160135160
40200145175
50200160185
65200180205
80200195215
100250215235
125250245275
150300280300
200350335355
250400400405
300500455460
350500515520
400600575580
450600635630
500600710685
600600835795
700700905910
80080010201030
90090011201120
1000100012451250
1200120014651470

 

5. Configuration

MLF Series Electromagnetic Flow Meter Configuration
ModelMLF
Sensor InstallationSFlange Type Sensor
CInsertion Type Sensor
OOthers
Pipeline Diameter1010mm
1515mm
2020mm
...... 
20002000mm
Electrode InstallationFStandard Fixed Type
Electrode MaterialA316L SS
BHb
CTa
DTi
EHc
FTungsten Carbide
GOthers
Liner MaterialRRubber
PPTFE
OOthers
Pipe MaterialB304 SS (Standard)
C316 SS
Flange TypeGGB (Standard)
AANSI
JJIS
BBS
OOthers 
Flange MaterialA304 SS
B316 SS
C#20 Carbon Steel (Standard)
Cover MaterialD304 SS
E316 SS
FCarbon Steel+ Epoxy Metallic Paint (Standard)
Matching Flange0Without Matching Flange (Standard)
1With Matching Flange
Ground Ring0Without Ground Ring (Standard)
1With Ground Ring
Rated Pressure101.0MPa
161.6MPa
252.5MPa 
404.0MPa
Working TemperatureE≤60℃
H≤180℃(Divided Type)
TypeIIntegrated Type
DDivided Type
OutputPPulse
A4-20mA
GRS485
HHart
QOthers
Power Supply0220VAC
124VDC
2Battery-powered
Protection Class0IP65 (Integrated/Divided Type)
1IP67 (Divided Type)
2IP68 (Divided Type)
Other FeaturesRHeat Energy Function
PWith PT1000
BWithout PT1000
Explosion Proof0None
EXExplosive Proof

 

6.Instrument Inspection and Maintenance

1 Maintenance and repair

a) The sensor installation site should comply with section IV requirements, please keep the housing clean;

b) The transmitter should be placed in a clean, ventilated and dry place;

c) The instrument needs to be checked every two years and for high-precision users, the instrument needs to be submitted for review.

 

2 Transport and storage

a) The instrument must be packed before transport and handled with care.

b) Storage sites must be dry and ventilated to avoid the erosion of corrosive gases, and the ambient temperature should not be too low or too high;

c) Storage time should preferably not exceed three years.

 

3 out-of-the-box inspection

a) The package cannot be opened with a heavy hammer and care should be taken not to damage the instrument

b) Check the contents carefully according to the packing slip.

Product Tags: Divided Type Electromagnetic Flow Meter   DN15 Electromagnetic Flow Meter   10m/s Electromagnetic Flow Meter  
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